Title :
Doppler Shift in Medium-Earth and Low-Earth Equatorial Satellites
Author :
Danesfahani, Reza ; Kateb, Peyman
Author_Institution :
Fac. of Eng., Sci. & Res. Branch, Islamic Azad Univ., Tehran
Abstract :
In this paper, Doppler shift in medium-earth equatorial (MEQ) and low-earth equatorial (LEQ) satellite constellations are investigated. Since Doppler shift changes as a function of the earth station latitude, the effect of changing the latitude of the earth station is also investigated. As the earth station latitude decreases, the instantaneous Doppler shift increases and the time interval for which the satellite is in line of sight of the earth station increases.
Keywords :
satellite ground stations; Doppler shift; LEQ; MEQ; earth station latitude; low-earth equatorial satellites; medium-earth equatorial satellites; Artificial satellites; Doppler shift; Downlink; Frequency; Low earth orbit satellites; Orbital calculations; Satellite constellations; Satellite ground stations; Signal design; Space stations; Doppler shift; Satellite; constellation; continuous coverage; equatorial orbit;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2008. ICTTA 2008. 3rd International Conference on
Conference_Location :
Damascus
Print_ISBN :
978-1-4244-1751-3
Electronic_ISBN :
978-1-4244-1752-0
DOI :
10.1109/ICTTA.2008.4530156
